The results are as follows: in cloacal bursa, VIP was extensively present in mucosa, submucosa and muscle layer, particularly expressed on mucosa epithelial cell and bursa nodule. 结果显示,法氏囊中VIP的表达范围广泛,涉及黏膜、黏膜下层和肌层,尤以黏膜上皮细胞和法氏囊小结髓质的表达为典型;
Expression of VIP on mucosa epithelial cell reduced during growth, but maintained strong expression on medulla of bursa nodule, the number of darkly stained positive cell in epithelial cell layer among cortex and medulla of bursa nodule increased with age. 随着日龄增加,黏膜上皮细胞VIP表达逐渐减弱,囊小结髓质一直保持较强的VIP阳性着色,囊小结皮髓质交界处上皮细胞层内VIP强阳性细胞有逐渐增多的趋势。